According to IMDB:
"Blood Diamond is based on a script by American screenwriter Charles Leavitt, who reworked an earlier script titled Okavango. Leavitt's script was subsequently reworked by writers Ed Zwick and Marshall Herskovitz."
All movies begin with a story, and Leavitt's original story, Okavango, apparently caught the attention of producers willing to fund the film.
Beginning in the 1970s, the crime of mining and trading blood diamonds to fund terrorism, rebel uprisings and other human acts of mayhem, became known based on news reports from the countries affected. Apparently, Leavitt crafted a great story based on real life events.
1950s
The book that the movie was based on, Roots by Alex Haley, was about his ancestors: how they were treated and how they came to American and lived after that.
The movie takes place in Baltimore, Maryland, where Poe lived on and off, and where he eventually died.
Dansville, Michigan
Budapest, Hungary
They take place in a region called Sinnoh.
where did it take place
Henley Regatta
The events of the movie The Polar Express take place on Christmas Eve.
Massachusetts
France
In Vienna
Washington
Oregon
1950s
In 1776 is when it takes place.
It took place in Hawaii.